The CAPRAC® Wipe Test/ Well Counter is a very sensitive system which uses a NaI detector that can be affected by high background activity or changes in the room background during counting periods. If the CAPRAC® is used in a location which might have a high background, an Auxiliary Shield can be used to reduce background levels. The Auxiliary Shield walls and top are 0.5" thick. The top lid has a handle for easy removal. The shield fits snugly around the well chamber and can be easily installed or removed.
• Dimensions: 9 3/4" h x 4" w (24.7 x 10.1 cm)
• Weight: 22 lbs. (10 kg)
Auxiliary Shield (CAPRAC®, 25R, Ultra Well)........................... 5420-2072